animated_stack_plus 1.1.2

A flexible and modern animated Floating Action Button (FAB) stack for Flutter with custom icons, builders, and smooth animations.

example/lib/main.dart

import 'package:animated_stack_plus/animated_stack_plus.dart';
import 'package:flutter/material.dart';

// Global ScaffoldMessengerState key allows posting SnackBar notifications
// from background actions that lack direct BuildContext access. Created once,
// outside build, so it survives rebuilds.
final GlobalKey<ScaffoldMessengerState> scaffoldMessengerKey =
    GlobalKey<ScaffoldMessengerState>();

void main() {
  runApp(const ExampleApp());
}

class ExampleApp extends StatelessWidget {
  const ExampleApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      scaffoldMessengerKey: scaffoldMessengerKey,
      title: 'AnimatedStackPlus Example',
      debugShowCheckedModeBanner: false,
      home: AnimatedStack(
        backgroundColor: Colors.grey[200]!,
        fabBackgroundColor: Colors.teal,

        // Custom Widgets (allowing complete design freedom over standard Icon constraints)
        fabOpenWidget: const Icon(Icons.menu, color: Colors.white),
        fabCloseWidget: const Icon(Icons.close, color: Colors.white),

        // Decoupled spacing definitions
        scaleWidth: 60,
        // How far the foreground slides (on top of FAB size + spacing).
        scaleHeight: 60,
        // Vertical action buttons builder
        columnWidgetBuilder: (closeFab) => Column(
          spacing: 20,
          children: [
            IconButton(
              style: IconButton.styleFrom(backgroundColor: Colors.pink),
              onPressed: () {
                closeFab(); // Automatically closes the menu drawer
                scaffoldMessengerKey.currentState?.showSnackBar(
                  const SnackBar(content: Text('Share button pressed')),
                );
              },
              icon: const Icon(Icons.share, color: Colors.white),
            ),
            IconButton(
              style: IconButton.styleFrom(backgroundColor: Colors.blue),
              onPressed: () {
                closeFab();
                scaffoldMessengerKey.currentState?.showSnackBar(
                  const SnackBar(content: Text('Contact button pressed')),
                );
              },
              icon: const Icon(Icons.call, color: Colors.white),
            ),
          ],
        ),

        // Horizontal action buttons builder
        bottomWidgetBuilder: (closeFab) => Row(
          children: [
            IconButton(
              style: IconButton.styleFrom(backgroundColor: Colors.orange),
              onPressed: () {
                closeFab();
                scaffoldMessengerKey.currentState?.showSnackBar(
                  const SnackBar(content: Text('Message button pressed')),
                );
              },
              icon: const Icon(Icons.message, color: Colors.white),
            ),
          ],
        ),

        // Your main application scaffold which translates back during active FAB states
        foregroundWidget: Scaffold(
          appBar: AppBar(
            title: const Text(
              'AnimatedStackPlus Example',
              style: TextStyle(color: Colors.white),
            ),
            backgroundColor: Colors.teal,
            centerTitle: true,
          ),
          body: const Center(
            child: Text(
              'Hello World',
              style: TextStyle(fontSize: 18, fontWeight: FontWeight.w500),
            ),
          ),
        ),
      ),
    );
  }
}